Browser based free games
Play free and free-to-play games designed to be played direclty in a browser (this includes both browser-based games and flash games)
Here are some of the best browser games you can play directly online: MMORPGs, collectible card games, strategy games and more. Browser games usually doesn't require nothing more than an updated browser (Chrome, Firefox, Edge, Opera, etc.) and are playable on any PC or Mac. Some of them may require a Flash plugin.
Popmundo
simulation
browserExtraLives AB
Progress Quest
RPG
Windows, Linux, Mac OSX, browserEric Fredricksen
Questionaut
adventure / point & click
browserAmanita Design
Rail Nation
simulation / management
browserTravian Games
Realm of the Mad God
MMO / MMORPG
browser, Windows, Mac OSXWild Shadow Studios
RPG MO
MMO / MMORPG
Windows, Mac OSX, Linux, browserMarxnet
Samorost
adventure / point & click
browserAmanita Design
Sextris
puzzle / tile-matching
browserSextris
Soccer Strip Quest
puzzle / tile-matching
Windows, browserBad Suzy
Star Wars Combine
MMO / MMORPG
browserSWC Programming Team
Strip poker online
strategy / cards
browsernet-assembly
Strip the Difference
puzzle
browser-
Supremacy 1914
strategy / wargame
browserBytro Labs
Tentlan
strategy / MMORTS
browserLionmoon
The King's League: Odyssey
strategy
browserKurechii
The Monster Inside
adventure / visual novel
Windows, Mac OSX, Linux, browserRandom Seed Games
The Settlers Online
strategy / MMORTS
browser, WindowsBlue Byte Software
There is no game
puzzle
Windows, Mac OSX, Android, browserDraw Me A Pixel
Therian Saga
RPG
Windows, browserFatecraft
Torn City
MMO / MMORPG
browserJoe Chedburn